CHICAGO (AP) - Aaron Boone is set to play in a major league baseball game for the first time since having open heart surgery in late March.
Boone was in the starting lineup Wednesday at first base for the Houston Astros in a game against the Chicago Cubs at Wrigley Field. He was batting seventh.
Boone signed with the Astros in the offseason, then had surgery March 26 because of a congenital defect in his aortic valve. He already has completed a minor league rehab assignment.
The 36-year-old Boone is an 11-year veteran who began his major league career with the Reds in 1997. He played last season with the